Air compressor pressure switch....gasket leak?

[relic7680]

This pressure switch is on a Husky compressor in the garage I rent (doesn't belong to me). Model LF10-4H, works fine, but gasket/diaphragm leaks down below 80 psi overnight.
Previously, I have tightened the four screws on the switch body, but now that will not correct the issue. Research has led me to conclude that the diaphragm is not sold separately, and a new switch is a good $30.00.
Has anybody here had this same issue?

 

[The Cobbler]

I wouldn't consider the switch a serviceable part .

 

[454ragtop]

Switches are pretty reasonable on Ebay, can get lower end imports for dirt, better quality name brands for a little more.

 

[relic7680]

Any recommendations on how I could seal this w/out buying another switch? The compressor isn't mine, so I'm not trying to drop more on it than I have to.

 

[littletoes]

Not sure where that diaphragm is located, but quite often when a pressure switch is leaking, it's the unloader. That compressor looks small though, and may not have what I'm thinking. I would swear I've seen those gaskets/diaphragms somewhere....

 

[relic7680]

The diaphragm is located between the plastic upper part of the switch that contains the electrical connections, and the the lower metal portion that plumbs into the tank. I know for sure that is what is leaking because I have dealt with it before.